ответ во вложении........
7 - 3 1/3= 21/3 - 10/3 = 11/3 = 3 2/3
5 4/9 + 3 5/9 = 49/9 + 32/9 = 81/9 = 9/1
ответ во вложении........
7 - 3 1/3= 21/3 - 10/3 = 11/3 = 3 2/3
5 4/9 + 3 5/9 = 49/9 + 32/9 = 81/9 = 9/1